Results 1 to 10 of about 5,816,652 (357)

On Sequential Warped Products Whose Manifold Admits Gradient Schouten Harmonic Solitons

open access: yesMathematics
As part of our study, we investigate gradient Schouten harmonic solutions to sequential warped product manifolds. The main contribution of our work is an explanation of how it is possible to express gradient Schouten harmonic solitons on sequential ...
Lixu Yan   +4 more
doaj   +1 more source

Warped product submanifolds in Kenmotsu space forms

open access: yes, 2006
Recently, Chen established a general sharp inequality for warped products in real space forms. As applications, he obtained obstructions to minimal isometric immersions of warped products into real space forms.
Mihai, Ion
core   +1 more source

Skew CR-warped products of Kaehler manifolds

open access: yes, 2010
Warped product CR-submanifolds of Kaehler manifolds were introduced by Chen in [9]. In this paper, we introduce a warped product skew-CR-submanifold, which is a generalization of warped product CR-submanifolds. We give a characterization supported by
Sahin, Bayram, Bayram Sahin
core   +1 more source

On Ricci Solitons and Curvature Properties of Doubly Warped Products with QSMC

open access: yesAxioms
This paper explores the geometric interplay between the Levi–Civita connection and the quarter-symmetric metric connection on doubly warped product manifolds.
Md Aquib   +3 more
doaj   +1 more source

Gradient vector fields which characterize warped products

open access: yes, 2001
We find what condition on gradient vector fields characterizes warped products, Riemannian products and round spheres. To do this we apply the theory of Jacobi equations without conjugate points to the differential maps of the local one-parameter groups ...
Innami, Nobuhiro, Kim, Byung Hak
core  

Stability of Doubly Warped Product Spacetimes [PDF]

open access: yes, 2009
Nonlinear stability for a class of doubly warped spacetimes is proved. The background spacetimes have negative Einstein factors. It shown that for dimension D≥11 there is a full parameter family of solutions to the vacuum Einstein equations which has Kasner-like singularity and Friedmann like asympotics in the future.
openaire   +2 more sources

Riemannian invariants for warped product submanifolds in Qεm×R{{\mathbb{Q}}}_{\varepsilon }^{m}\times {\mathbb{R}} and their applications

open access: yesOpen Mathematics
This article investigates the geometric and topologic of warped product submanifolds in Riemannian warped product Qεm×R{{\mathbb{Q}}}_{\varepsilon }^{m}\times {\mathbb{R}}.
Li Yanlin, Alshehri Norah, Ali Akram
doaj   +1 more source

Ricci Curvature Bounds for Warped Products

open access: yes, 2014
We prove generalized lower Ricci curvature bounds for warped products over complete Finsler manifolds. On the one hand our result covers a theorem of Bacher and Sturm con-cerning euclidean and spherical cones ([3]).
Christian Ketterer
core  

Home - About - Disclaimer - Privacy